autofs4: Add d_automount() dentry operation
Add a function to use the newly defined ->d_automount() dentry operation
for triggering mounts instead of doing the user space callback in ->lookup()
and ->d_revalidate().
Note, to be useful the subsequent patch to add the ->d_manage() dentry
operation is also needed so the discussion of functionality is deferred to
that patch.
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index a7bdb9d..d0aa38c 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -252,6 +252,7 @@
}
static const struct dentry_operations autofs4_sb_dentry_operations = {
+ .d_automount = autofs4_d_automount,
.d_release = autofs4_dentry_release,
};
@@ -320,6 +321,9 @@
goto fail_dput;
}
+ if (autofs_type_trigger(sbi->type))
+ __managed_dentry_set_automount(root);
+
root_inode->i_fop = &autofs4_root_operations;
root_inode->i_op = autofs_type_trigger(sbi->type) ?
&autofs4_direct_root_inode_operations :